Find the radius of the curvature at point (s, ψ) on the curve s = 4 – McqOptions

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1.	Find the radius of the curvature at point (s, ψ) on the curve s = 4 a sin ψ [cycloid]
A.	tan ψ
B.	2 a sec3 ψ
C.	4 a cos ψ
D.	None of the above
Answer» E.

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